Texting, reading emails and surfing the net in bed is bad for your health. The blue light that is emitted from the devices inhibits sleep and work performance, according to scientific experts.

Melatonin is a natural substance that gets produced in the brain at night. Supplements of melatonin are highly useful for people who suffer from recurrent insomnia or travel across several time zones.

- which may be caused by lack of melatonin and the presence of toxic substances in the brain

Night owls stay up late in the evening and get up late in the morning, and they risk depression, according to a new study. In fact, there seems to be a link between the increasing number of people with disturbed 24-hour rhythm who expose themselves to blue light from computer screens and other devices, and who become depressed. Lack of sleep at night and low levels of the hormone melatonin are a burden to the brain and nervous system in several different ways.

Melatonin is primarily known as a sleep hormone, but the substance deserves a lot more attention. Studies show that melatonin can step up the body's fat burning capacity, reduce nocturnal hunger, and counteract weight increase in postmenopausal women.

Many women experience sleep deprivation as one of the biggest problems of menopause. Not only does this condition cause fatigue, it also increases the risk of overweight, depression, impaired immune resistance, weak bones, atherosclerosis, and dementia. It is therefore a very good idea to solve any sleeping problem with the natural substance melatonin and a few other simple adjustments.